CN106554034B - A kind of vulcanization silver nano material dispersion and the preparation method and application thereof - Google Patents
A kind of vulcanization silver nano material dispersion and the preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses a kind of vulcanization silver nano material dispersions and the preparation method and application thereof.Preparation method includes (1) under the conditions of 25-70 DEG C, after higher fatty acids is mixed with water soluble alkyl amines, water is added to continues to mix；(2) water-soluble silver saline solution is added dropwise, mixes to system bleach, continuess to mix, adjusts pH to 9-12；(3) the water-soluble sulfosalt aqueous solution, hybrid reaction is added dropwise, cooled and filtered collects filtrate.Preparation method of the present invention vulcanization silver nano material dispersion obtained is sufficiently stable, and good dispersion, has good broad-spectrum antimicrobial effect.
Description
Technical field
The present invention relates to a kind of vulcanization silver nano material dispersions and the preparation method and application thereof.
Background technique
For a long time, the health of the mankind is constantly subjected to the threat of environmental pollution, bacterial infection.Nineteen ninety-five, the whole world is because thin
It is 17,000,000 people that bacterium, which infects murderous number, accounts for about the one third of dead population；Spring in 2003, SARS virus is in
The outburst of the ground such as state；" bird flu " Zeng Yidu causes global fear in the past few years.These infectious diseases all originate from disease after all
Pathogenic microorganism, therefore, countries in the world more pay attention to the research of antibacterial agent, and the production of anti-biotic material has become an emerging production
Industry.
Silver system anti-biotic material is because it has the characteristics that efficient, wide spectrum, low toxicity, tasteless, free from environmental pollution, safety and environmental protection, just
As one of preferred antibacterial agent.Currently, the more antibiotic property applied in the market mainly with silver ion and is received containing silver material
The form of meter Yin exists.But since the chemical property of silver is active, the oxidizable Ag at brown2O, thus reduce antibacterial effect and
Influence product appearance.Element sulphur is a kind of biologically active element, has research to think, elemental sulfur and sulphur compound all show
Different bioactivity out such as removes heavy metal toxicity, removes free radical, antioxidant activity, antibiotic property, anti-tumor activity.Anti-
Bacterium field, sulphur all have good killing effect to bacterium and fungi, have unique antibacterial activity.
Nano inorganic antimicrobial agent is achievement on the basis of nanotechnology and antimicrobial technology, it is not only total with nano material
Some skin effects, small-size effect etc., compared with traditional antibacterial agent, also have antibacterial range is wider, antibacterial ability more
By force, the advantage that antibacterial durability is more preferable, heat resistance and processability are more preferable.
Therefore, all while using nano silver and sulphur there is good anti-microbial property, silver-colored based nano-material can be greatly improved
Antibacterial ability, expand the antibacterial range of material, the antibacterial effect than single nano silver antimicrobials or sulphur antibacterial agent is more preferable.In
State patent CN103737014A is prepared for a kind of nano-sulfur silver complex sol, and finds the complex sol to Escherichia coli, golden yellow
The bacteriums such as color staphylococcus, mould, black-koji mould and fungi have good antibacterial ability.Jin Ying etc. loads silver sulfide nanometer particles
On the chelate fibre as made from modifying polyacrylonitrile containing amidoxime group, it is multiple that silver sulfide nanometer particles/amidoxim is made
Condensating fiber has studied fiber to the bacteriostasis property of Escherichia coli and bacillus subtilis, finds it to Escherichia coli and withered grass bud
Spore bacillus has good fungistatic effect.From the point of view of existing research, vulcanization silver nano material has good broad spectrum antibacterial.
But the method for silver sulfide nano particle is prepared at present mainly also with reference to the chemical preparation side for preparing nano silver
Method.Existing chemical method preparation method is complicated, and the particle diameter distribution of silver sulfide nano particle obtained is uneven, stability is poor, system
Mostly water-soluble low, in water the bad dispersibility of the silver sulfide nanometer particles material of standby antibacterial, this be just silver sulfide nanometer particles into
One step use brings inconvenience.Therefore, find and probe into a kind of method for capableing of the easy water-soluble vulcanization silver nano material of preparation
It has very important significance.Meanwhile all there is good anti-microbial property using nano silver and sulphur, silver system can be greatly improved and received
The antibacterial ability of rice material, obtains having the silver sulfide nanometer particles material of broad spectrum antibacterial to have very important significance.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome the vulcanization silver nano material prepared in the prior art water-soluble
Property it is poor, preparation method is complicated, the problem that the particle diameter distribution of silver sulfide nano particle obtained is uneven and stability is poor, provides
A kind of preparation method of simple, easy-operating vulcanization silver nano material dispersion, as made from preparation method sulphur
It is sufficiently stable to change silver nano material dispersion, and good dispersion, there is good broad-spectrum antimicrobial effect.
A kind of one of technical solution of the present invention: preparation method vulcanizing silver nano material dispersion comprising Xia Shubu
It is rapid:
(1) under the conditions of 25-70 DEG C, after higher fatty acids is mixed with water soluble alkyl amines, water is added to continues to mix, obtained mixed
Close liquid A；
(2) water-soluble silver saline solution is added dropwise into step (1) described mixed liquor A, makes to mix to system bleach,
It continuess to mix, adjusts pH to 9-12, obtain mixed liquid B；
(3) water-soluble sulfosalt aqueous solution, hybrid reaction, mistake after cooling are added dropwise into step (2) described mixed liquid B
Filter, collect filtrate to get.
In the present invention, the higher fatty acids can be the higher fatty acids of this field routine, preferably C12–C20It is high
Grade fatty acid is more preferably 20 acid and/or oleic acid, is most preferably oleic acid.The water soluble alkyl amines can be normal for this field
The water soluble alkyl amines of rule, preferably C3–C6Straight chain water soluble alkyl amines are more preferably n-propylamine and/or n-butylamine, most preferably
Ground is n-propylamine.The water soluble silver salt can be the water soluble silver salt of this field routine, preferably be selected from silver acetate, nitric acid
One of silver, silver sulfate and silver citrate are a variety of, are more preferably silver acetate and/or silver nitrate, are most preferably silver acetate.Institute
The water-soluble sulfosalt that water-soluble sulfosalt can be this field routine, preferably vulcanized sodium and/or potassium sulfide are stated, is more preferably sulphur
Change potassium.
In the present invention, step (1) are as follows: under the conditions of 25-70 DEG C, after higher fatty acids is mixed with water soluble alkyl amines,
Add water to continues to mix, obtains mixed liquor A.In step (1), the temperature be 25-70 DEG C, preferably 25-50 DEG C, more preferably for
25-30 DEG C, be most preferably 30 DEG C.The higher fatty acids and the water soluble allcylbenzene can be in molar ratio this field routine
Ratio, preferably 1: 3-1: 5.7 are more preferably 1: 3-1: 4, are most preferably 1: 4.The mixing can be this field routine
Operation, is preferably stirred.The mixed time can be the duration of this field routine, preferably 30min.It is described
The time for adding water to continues to mix can be the duration of this field routine, and preferably 20-30min is more preferably 25-30min, most
It goodly is 30min.
In the present invention, step (2) are as follows: water-soluble silver saline solution is added dropwise into step (1) described mixed liquor A, makes
It mixes to system bleach, continuess to mix, adjust pH to 9-12, obtain mixed liquid B.In step (2), make the water soluble silver salt and institute
State higher fatty acids molar ratio can be this field routine ratio, preferably 1: 1-1: 4, be more preferably 1: 2-1: 4, most
It goodly is 1: 2.Described be added dropwise can be preferably 2-5mL/ for the operation of this field routine, the rate being added dropwise
Min is more preferably 2mL/min.Described continues to mix can be the operation of this field routine, preferably be stirred.It is described
The time continuesd to mix can be the duration of this field routine, and preferably 20-30min is more preferably 20-25min, most preferably
For 25min.The pH value is adjusted to 9-12, is preferably adjusted to 9-11, is more preferably adjusted to 10-11, is most preferably adjusted to 11.
In the present invention, step (3) are as follows: water-soluble sulfosalt aqueous solution is added dropwise into step (2) described mixed liquid B, mixes
Close reaction, cooled and filtered, collect filtrate to get.In step (3), the water soluble silver salt rubs with the water-soluble sulfosalt
You than can be this field routine ratio, preferably 1: 0.5-1: 3, be more preferably 1: 1-1: 2, be most preferably 1: 1.It is described
Be added dropwise can be this field routine operation, the rate being added dropwise be preferably 2-5mL/min, more preferably for
2mL/min.The time of the hybrid reaction can be the duration of this field routine, and preferably 2.5-3h is more preferably 3h.Institute
State the temperature that cooling temperature can be this field routine, preferably room temperature.The filtering behaviour for being filtered into this field routine
Make, is preferably filtered at room temperature and pressure with qualitative filter paper.
The two of technical solution of the present invention: a kind of vulcanization silver nano material dispersion is according to preparation side as previously described
Obtained by method.
In the present invention, silver is that the content of nano particle is preferably 0.01- in the vulcanization silver nano material dispersion
0.1g/mL, average grain diameter are preferably 6-25nm.
The three of technical solution of the present invention: silver sulfide Nanodispersion as previously described ties up to answering in the final finishing of cotton textiles
With.The cotton textiles are that this field is conventional, are preferably comprised pure cotton textile, cotton and polyester blended fabric and cotton and terylene is handed over
One of fabric is a variety of.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get each preferable reality of the present invention
Example.
The reagents and materials used in the present invention are commercially available.
The positive effect of the present invention is that: the present invention provides a kind of simple process, easy-operating preparation silver system is received
The preparation method of rice material dispersion system, the silver system nano particle in silver-colored based nano-material dispersion that this method is prepared
Particle diameter distribution is uniform, and stability, dispersibility are preferable, has good bactericidal effect.
Detailed description of the invention
Fig. 1 is Ar-WS-Nano-Ag prepared by embodiment 12The TEM photo of S.
Fig. 2 is Ar-WS-Nano-Ag prepared by embodiment 12The grain size distribution of S.
Fig. 3 is Ol-WS-Nano-Ag prepared by embodiment 22The TEM photo of S.
Fig. 4 is Ol-WS-Nano-Ag prepared by embodiment 22The grain size distribution of S.
Fig. 5 is Ol-WS-Nano-Ag prepared by embodiment 32The TEM photo of S.
Fig. 6 is Ol-WS-Nano-Ag prepared by embodiment 32The grain size distribution of S.
Fig. 7 is Do-WS-Nano-Ag prepared by embodiment 42The TEM photo of S.
Fig. 8 is Do-WS-Nano-Ag prepared by embodiment 42The grain size distribution of S.
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.In the following examples, the experimental methods for specific conditions are not specified, according to conventional methods and conditions, or according to quotient
The selection of product specification.
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.In the following examples, the experimental methods for specific conditions are not specified, according to conventional methods and conditions, or according to quotient
The selection of product specification.
Agents useful for same is as follows in embodiment:
Silver nitrate: purity 99.8% is purchased from Solution on Chemical Reagents in Shanghai Co., Ltd；
Oleic acid, 20 acid, n-propylamine, n-butylamine, n-hexylamine, potassium sulfide: lauric acid/dodecanoic acid is that analysis is pure, is purchased from Shanghai state
Medicine group；
Nine water vulcanized sodium: pure, Shanghai Tong Ya chemical science and technology Development Co., Ltd is analyzed.
Used test instrument and test condition are as follows in embodiment:
Transmission electron microscope analysis (TEM): JEOL 2100F type transmission electron microscope (Japanese JEOL company) takes a small amount of sulphur
Change silver nano material dispersion to be distributed in deionized water, ultrasound is gone appropriate solution to be added drop-wise on ultra-thin copper mesh, waved to solvent
Test is observed after hair.
Grain diameter measurement: measuring the diameter of nano particle in TEM photo using NanoMeasurer software, is averaged to obtain
Average grain diameter.
Embodiment 1
(1) under the conditions of 70 DEG C, by 20 acid of 147g (0.47mol) and 127mL (1.54mol) n-propylamine blending and stirring
After 30min, 200mL water is added and is stirred for 20min；
(2) with the rate of 2mL/min be added dropwise 60mL 2mol/L silver acetate aqueous solution stir it is transparent molten to system
Liquid continuess to mix 30min, and the NaOH solution of 1mol/L is added dropwise, and the pH of system is transferred to 10；
(3) nine water sodium sulfide solution of 12mL 5mol/L, silver acetate and nine water sulphur are added dropwise with the rate of 2mL/min
The mass ratio of the material for changing sodium is 1: 0.5, is reacted 2.5 hours, it is cooling after to after room temperature, qualitative filter paper filtering to get 20 acid-just
The aqueous solution of the silver sulfide nano particle of propylamine cladding, abbreviation Ar-WS-Nano-Ag2S。
The average grain diameter of the silver system nano particle of the vulcanization silver nano material aqueous dispersion is 20nm, sulphur in dispersion
The content for changing silver nano-grain is 0.0265g/mL, reaches 99% or more to staphylococcus aureus sterilizing rate.
Embodiment 2
(1) under the conditions of 25 DEG C, by 90mL (0.27mol) oleic acid and 150mL (1.54mol) n-butylamine blending and stirring
After 30min, 200mL water is added and is stirred for 30min；
(2) with the rate of 2mL/min be added dropwise 90mL 3mol/L silver nitrate aqueous solution stir it is transparent molten to system
Liquid continuess to mix 20min, and the NaOH solution of 1mol/L is added dropwise, and the pH of system is transferred to 9；
(3) nine water sodium sulfide solution of 110mL 5mol/L, silver nitrate and nine water sulphur are added dropwise with the rate of 2mL/min
The mass ratio of the material for changing sodium is 1: 2, is reacted 3 hours, and after being cooled to room temperature, qualitative filter paper filtering is to get oleic acid-n-butylamine cladding
Silver sulfide nano particle aqueous solution, abbreviation Ol-WS-Nano-Ag2S。
The average grain diameter of the silver system nano particle of the vulcanization silver nano material aqueous dispersion is 12nm, sulphur in dispersion
The content for changing silver nano-grain is 0.105g/mL, reaches 99% or more to staphylococcus aureus sterilizing rate.
Embodiment 3
(1) under the conditions of 30 DEG C, by 90mL (0.27mol) oleic acid and 90mL (1.09mol) n-propylamine blending and stirring 30min
Afterwards, 100mL water is added and is stirred for 25min；
(2) with the rate of 5mL/min be added dropwise 70mL 2mol/L silver sulfate aqueous solution stir it is transparent molten to system
Liquid continuess to mix 25min, and the NaOH solution of 1mol/L is added dropwise, and the pH of system is transferred to 11；
(3) 30mL 5mol/L potassium sulfide aqueous solution, the object of silver sulfate and potassium sulfide are added dropwise with the rate of 5mL/min
The amount ratio of matter is 1: 1, is reacted 3 hours, and after being cooled to room temperature, qualitative filter paper filtering is to get oleic acid-n-propylamine cladding silver sulfide
The aqueous solution of nano particle, abbreviation Ol-WS-Nano-Ag2S。
The average grain diameter of the silver system nano particle of the vulcanization silver nano material aqueous dispersion is 6nm, sulphur in dispersion
The content for changing silver nano-grain is 0.049g/mL, reaches 99% or more to staphylococcus aureus sterilizing rate.
Embodiment 4
(1) under the conditions of 50 DEG C, by 36g (0.18mol) lauric acid/dodecanoic acid and 72mL (0.54mol) n-hexylamine blending and stirring
After 30min, 1100mL water is added and is stirred for 28min；
(2) 1000mL 0.18mol/L silver citrate aqueous solution is added dropwise and stirs to system with the rate of 5mL/min and be in
Clear solution continuess to mix 20min, and the NaOH solution of 1mol/L is added dropwise, and the pH of system is transferred to 12；
(3) nine water sodium sulfide solution of 18mL 5mol/L, silver citrate and nine water are added dropwise with the rate of 5mL/min
The mass ratio of the material of vulcanized sodium is 1: 3, is reacted 2.5 hours, and after being cooled to room temperature, qualitative filter paper filtering, filtrate is lauric acid/dodecanoic acid-
The aqueous solution of the silver sulfide nano particle of n-hexylamine cladding, abbreviation Do-WS-Nano-Ag2S。
The average grain diameter of the silver system nano particle of the vulcanization silver nano material aqueous dispersion is 25nm, sulphur in dispersion
The content for changing silver nano-grain is 0.01g/mL, reaches 99% or more to staphylococcus aureus sterilizing rate.
Effect example 1
Ar-WS-Nano-Ag prepared by embodiment 12The TEM photo of S is as shown in Figure 1, the Ar-WS-Nano-Ag2The grain of S
Diameter distribution is as shown in Figure 2.Crosslinking agent is compounded in the vulcanization silver nano material dispersion prepared in embodiment 1Resin F-AP is applied in the final finishing on pure cotton textile, to the fabric after arrangement referring to GB/T
20944.3-2008 " evaluation of antibacterial textile performance " carries out anti-microbial property test, the results showed that the pure cotton by final finishing is spun
Fabric is respectively 81.6%, 99.9% to the bacteriostasis rate of the bacteriostasis rate of Escherichia coli, staphylococcus aureus and Candida albicans
With 91.7%, through standard soap 50 fabrics to Escherichia coli, staphylococcus aureus and white like a chain of pearls or a string of beads bacterium bacteriostasis rate still
More than 80%, 99% and 90%.
Effect example 2
Ol-WS-Nano-Ag prepared by embodiment 22The TEM photo of S is as shown in figure 3, the Ol-WS-Nano-Ag2The grain of S
Diameter distribution is as shown in Figure 4.Chemical industry green wood in Jiangyin mole is compounded in the vulcanization silver nano material dispersion prepared in example 2
Expect the watersoluble closed type isocyanate crosslinking W-8130 of Co., Ltd, applies in the final finishing of cotton and blend polyester fabric, it is right
Fabric after arrangement carries out anti-microbial property test referring to GB/T 20944.3-2008 " evaluation of antibacterial textile performance ", as a result
Show cotton by final finishing and polyester blended fabric to the bacteriostasis rate of Escherichia coli, staphylococcus aureus and Candida albicans
Bacteriostasis rate be respectively 81.2%, 99.8% and 91.4%, soap 50 fabrics to Escherichia coli, Staphylococcus aureus through standard
The bacteriostasis rate of bacterium and white bacterium like a chain of pearls or a string of beads is still above 80%, 99% and 90%.
Effect example 3
Ol-WS-Nano-Ag prepared by embodiment 32The TEM photo of S is as shown in figure 5, the Ol-WS-Nano-Ag2The grain of S
Diameter distribution is as shown in Figure 6.Xi Run chemical science and technology in Shanghai is compounded in the vulcanization silver nano material dispersion prepared in embodiment 3
Co., Ltd crosslinking agent polycarbodiimide XR-201 is applied in the final finishing of cotton and terylene intertexture, to knitting after arrangement
Product carry out anti-microbial property test referring to GB/T20944.3-2008 " evaluation of antibacterial textile performance ", the results showed that whole after warp
The cotton of reason is respectively with bacteriostasis rate of the terylene intertexture to the bacteriostasis rate of Escherichia coli, staphylococcus aureus and Candida albicans
80.9%, 99.6% and 90.6%, 50 fabrics are soaped to Escherichia coli, staphylococcus aureus and white bacterium like a chain of pearls or a string of beads through standard
Bacteriostasis rate still above 80%, 99% and 90%.
Effect example 4
Do-WS-Nano-Ag prepared by embodiment 42The TEM photo of S is as shown in fig. 7, the Do-WS-Nano-Ag2The grain of S
Diameter distribution is as shown in Figure 8.Chemical industry green wood in Jiangyin mole is compounded in the vulcanization silver nano material dispersion prepared in example 4
Expect the watersoluble closed type water-based isocyanate crosslinking agent W-8035 of Co., Ltd, applies in the final finishing of pure cotton shirt, to arrangement
Fabric afterwards carries out anti-microbial property test referring to GB/T20944.3-2008 " evaluation of antibacterial textile performance ", the results showed that warp
The pure cotton shirt arranged later is respectively 81.3% to the bacteriostasis rate of Escherichia coli, staphylococcus aureus and Candida albicans,
99.8% and 91.3%.50 fabrics are soaped to the antibacterial of Escherichia coli, staphylococcus aureus and Candida albicans through standard
Rate is still above 80%, 99% and 90%.
It should be understood that those skilled in the art can be to correlation of the invention after having read above content of the invention
Condition makes various changes or modifications, and these equivalent forms also fall within the scope of the appended claims of the present application.
Claims (6)
1. a kind of preparation method for vulcanizing silver nano material dispersion, which is characterized in that it includes the following steps:
(1) under the conditions of 25-70 DEG C, after higher fatty acids is mixed with water soluble alkyl amines, water is added to continues to mix, obtains mixed liquor
A；
(2) water-soluble silver saline solution is added dropwise into step (1) described mixed liquor A, mixes to system bleach, continues to mix
It closes, adjusts pH to 9-12, obtain mixed liquid B；
(3) water-soluble sulfosalt aqueous solution, hybrid reaction is added dropwise to step (2) described mixed liquid B, cooled and filtered is collected
Filtrate to get.
2. the preparation method of vulcanization silver nano material dispersion as described in claim 1, which is characterized in that the higher aliphatic
Acid is C12–C20Higher fatty acids；
And/or the water soluble alkyl amines are C3–C6Straight chain water soluble alkyl amines；
And/or the water soluble silver salt is selected from one of silver acetate, silver nitrate and silver citrate or a variety of；
And/or the water-soluble sulfosalt is vulcanized sodium and/or potassium sulfide.
3. the preparation method of vulcanization silver nano material dispersion as claimed in claim 2, which is characterized in that higher fatty acids is
20 acid and/or oleic acid；And/or the water soluble alkyl amines are n-propylamine and/or n-butylamine；And/or the water-soluble silver
Salt is silver acetate and/or silver nitrate；And/or the water-soluble sulfosalt is potassium sulfide.
4. the preparation method of vulcanization silver nano material dispersion as described in claim 1, which is characterized in that in step (1), institute
Stating temperature is 25-50 DEG C；And/or the higher fatty acids and the water soluble alkyl amines molar ratio are 1: 3-1: 5.7；With/
Or, the mixed time is 30 minutes；And/or the time that described plus water continuess to mix is 20-30 minutes.
5. the preparation method of vulcanization silver nano material dispersion as described in claim 1, which is characterized in that in step (2), institute
The molar ratio for stating water soluble silver salt and the higher fatty acids is 1: 1-1: 4；And/or the rate being added dropwise is 2-5 millis
Liter/min；And/or it described continuess to mix to be stirred；And/or the time continuesd to mix is 20-30 minutes；With/
Or, the pH value is adjusted to 9-11.
6. the preparation method of vulcanization silver nano material dispersion as described in claim 1, which is characterized in that in step (3), institute
The molar ratio for stating water soluble silver salt and the water-soluble sulfosalt is 1: 0.5-1: 3；And/or the rate being added dropwise is 2-5
Ml/min；And/or the time of the hybrid reaction is 2.5-3 hours；And/or the temperature of the cooling is room temperature；With/
Or, described be filtered into is filtered with qualitative filter paper.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805606A (en) * | 2010-02-22 | 2010-08-18 | 中国科学院苏州纳米技术与纳米仿生研究所 | Method for preparing monodisperse near-infrared quantum dots |
| CN102643641A (en) * | 2012-04-17 | 2012-08-22 | 武汉大学 | Preparation method for water-soluble Ag2S quantum dot |
| CN103265063A (en) * | 2013-05-31 | 2013-08-28 | 吉林大学 | Method for preparing Y-doped Ag2S diluted magnetic semiconductor nanoparticles |
| CN103771487A (en) * | 2013-12-26 | 2014-05-07 | 江苏大学 | Method for synthetizing Ag2S-CdS hetero-nanostructure employing microwave |
| CN103991895A (en) * | 2014-05-23 | 2014-08-20 | 南京师范大学 | Preparation method of aptamer-induced Ag2S quantum dots |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805606A (en) * | 2010-02-22 | 2010-08-18 | 中国科学院苏州纳米技术与纳米仿生研究所 | Method for preparing monodisperse near-infrared quantum dots |
| CN102643641A (en) * | 2012-04-17 | 2012-08-22 | 武汉大学 | Preparation method for water-soluble Ag2S quantum dot |
| CN103265063A (en) * | 2013-05-31 | 2013-08-28 | 吉林大学 | Method for preparing Y-doped Ag2S diluted magnetic semiconductor nanoparticles |
| CN103771487A (en) * | 2013-12-26 | 2014-05-07 | 江苏大学 | Method for synthetizing Ag2S-CdS hetero-nanostructure employing microwave |
| CN103991895A (en) * | 2014-05-23 | 2014-08-20 | 南京师范大学 | Preparation method of aptamer-induced Ag2S quantum dots |
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